van Zyl, Minette, and Joubert van Eeden. “A CIRCULAR ECONOMY INVESTIGATION INTO TREATMENT TECHNOLOGIES AVAILABLE FOR THE DISPOSAL OF SLAUGHTERHOUSE DERIVATIVES”. The South African Journal of Industrial Engineering 33, no. 3 (November 11, 2022): 150–168. Accessed April 26, 2024. https://sajie.journals.ac.za/pub/article/view/2791.